The IEEE 802 working groups are in the process of completing significant work that will allow vendors to build a standards-based network with the appropriate quality of service (QoS) for HD production. This new set of standards, developed by the organization's Audio Video Bridging Task Group, provides three major enhancements for Ethernet-based video networks: 1. precise timing to support low-jitter media clocks and accurate synchronization of multiple streams; 2. a simple reservation protocol that allows an endpoint device to notify the various network elements in a path to reserve the resources necessary to support a particular stream; and 3. queuing and forwarding rules that ensure that such a stream will pass through the network within the delay specified by the reservation.
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